Pro engineering, inc. had the following transactions during the first month of business as a proprietorship. journalize the transactions. (credit account titles are automatically indented when amount is entered. do not indent manually. if no entry is required, select "no entry" for the account titles and enter 0 for the amounts. record journal entries in the order presented in the problem.) mar. 1 invested $30,000 cash. 3 purchased $8,500 of equipment for the business with cash. 6 purchased supplies on account for $800 (debit asset account). 15 paid march rent of $2,300. 28 performed engineering services for clients, for which $1,303 was collected in cash and $689 was billed to the clients. 15 paid august rent $634. 19 counted supplies and determined that only $263 of the supplies purchased on august 7 are still on hand. date account titles and explanation aug. 12